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Ovarian torsion with dermoid cyst

Case contributed by Andrew Dixon
Diagnosis almost certain

Presentation

Severe lower abdominal pain.

Patient Data

Age: 25 years
Gender: Female
ultrasound

Ultrasound images show many of the features of an ovarian torsion. The ovary is distended, with absent Doppler flow and some adjacent free fluid. The ovary also contains a 4cm dermoid cyst with an echogenic 'dermoid plug'.  

Case Discussion

This ultrasound case shows many of the typical features of an ovarian torsion. The ovary is distended with absent Doppler flow and some adjacent free fluid. The ovary also contains a 4 cm dermoid cyst with an echogenic Rokitansky nodule ('dermoid plug').  

Around 50% of torsions occur in ovaries which contain a lesion and around 50% of these are dermoid cysts.

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